<?php 
	$host_name = "exam";
	$host_user="root";
	$host_pass="123456";
	$db_name="test";
	$test_user="test_user";
	$test_question="test_question";
	$test_answer="test_answer";
	$test_exam="test_exam";
	$mysqli=new mysqli($host_name,$host_user,$host_pass,$db_name);
	$mysqli->query("set name 'gb2312'");
 ?>